Finding the Fourth Proportional to 12,941.72, 19,412.68 and 5,150.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,941.72 : 19,412.68 = 5,150.56 : x
2. Step 2: Convert to fraction form
   12,941.72/19,412.68 = 5,150.56/x
3. Step 3: Cross multiply
   12,941.72x = 19,412.68 × 5,150.56
4. Step 4: Simplify right side
   12,941.72x = 99,986,173.10
5. Step 5: Solve for x
   x = 99,986,173.10/12,941.72
6. Step 6: Final answer
   x = 7,725.88